--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/master/reg_request.h	Mon Nov 03 15:20:05 2014 +0100
@@ -0,0 +1,67 @@
+/******************************************************************************
+ *
+ *  $Id$
+ *
+ *  Copyright (C) 2012  Florian Pose, Ingenieurgemeinschaft IgH
+ *
+ *  This file is part of the IgH EtherCAT Master.
+ *
+ *  The IgH EtherCAT Master is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License version 2, as
+ *  published by the Free Software Foundation.
+ *
+ *  The IgH EtherCAT Master is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+ *  Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with the IgH EtherCAT Master; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ *  ---
+ *
+ *  The license mentioned above concerns the source code only. Using the
+ *  EtherCAT technology and brand is only permitted in compliance with the
+ *  industrial property and similar rights of Beckhoff Automation GmbH.
+ *
+ *****************************************************************************/
+
+/**
+   \file
+   EtherCAT register request structure.
+*/
+
+/*****************************************************************************/
+
+#ifndef __EC_REG_REQUEST_H__
+#define __EC_REG_REQUEST_H__
+
+#include <linux/list.h>
+
+#include "globals.h"
+
+/*****************************************************************************/
+
+/** Register request.
+ */
+struct ec_reg_request {
+    struct list_head list; /**< List item. */
+    size_t mem_size; /**< Size of data memory. */
+    uint8_t *data; /**< Pointer to data memory. */
+    ec_direction_t dir; /**< Direction. EC_DIR_OUTPUT means writing to the
+                          slave, EC_DIR_INPUT means reading from the slave. */
+    uint16_t address; /**< Register address. */
+    size_t transfer_size; /**< Size of the data to transfer. */
+    ec_internal_request_state_t state; /**< Request state. */
+    uint16_t ring_position; /**< Ring position for emergency requests. */
+};
+
+/*****************************************************************************/
+
+int ec_reg_request_init(ec_reg_request_t *, size_t);
+void ec_reg_request_clear(ec_reg_request_t *);
+
+/*****************************************************************************/
+
+#endif